Machine for crushing and pulverizing.



No. 860,783. PATLNTLL JULY z3, 1907.

v v. J. BELL. MAGHINB PORCRUSHING AND PULVLRIZING.

APPLICATION FILED 0033.31, 1905.

UNITED STATES PATENT OFFICE.

WILLARD J. BELL, OF NEWAYGO, MICHIGAN, ASSIGNOR TO NEI/ VAYGO PORTLANDCEMENT COMPANY, OF NEWAYGO, MICHIGAN, A CORPORATION OFWMICHIGAN.

ll/IACHINE V:FOR CRUSHING AND PULVRIZING.

Speeicaton of Letters Patent.

Patented July 23, 1907.

Application filed Qctobel 31, 1905. Serial No. 285,281.

To all whom it 'may concern:

Be it known that I, WILLARD J. BELL, a citizen of the United States,residing at Newaygo, in the county of Newaygo and State of Michigan,have invented certain new and useful Improvements in Machines forCrushing and Pulverizing; and I do hereby declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to improvements in machines for crushing andpulverizing, and more particularly to machines for pulverizing orgrinding materials for making cement in the process of its manufacture;and its object is to provide the device with various new and usefulfeatures hereinafter more fully described and particularly pointed outin the claims.

My invention consists essentially of the combination and arrangement ofa machine comprising an adjustable stationary jaw, a movable jawopposing the same, and means for moving the movable jaw in the are of acircle at its respective ends, said arcs having different radii, wherebythe movable jaw reciprocates longitudinally of the stationary jaw, andalso moves toward and from the same, and whereby a combined sliding andcrushing movement of the jaw is produced, as will more fully appear byreference to the accompanying drawings, in which:

Figure l. is a vertical section of a device embodying my invention takenon the line l--l of Fig. 2.; and, Fig. 2. a plan view of the same.

Like numbers refer to like parts in both of the figures. The case orframe consists of plates l, l arranged in parallel vertical planesconnected and spaced apart by means of tie bolts 2.

3 is a pivot pin supporting the upper end of the lower jaw 4, the otherend of which jaw is yieldingly supported upon a pivoted lever comprisinga short arm 22 engag. ing and supporting the jaw, and projecting from arock shaft 5 j ournaled in the plates l-l and having attached an arm 2lforming the long arm of the lever on which is adj ustably mounted aweight 23.

Opposite the lower jaw is a jaw 6 arranged with its lower end Contactingthe jaw 4 for finely pulverizing the material and with its upper endspaced apart therefrom to receive the material therebetween when in itscoarser condition. This jaw 6 is carried at its ripper end by a shortarm or link 7 mounted on a rock-shaft 9 journaled in the frame, and atits lower end is carried on the ends of long arms S mounted on a rockshaft l0 also j ournaled in the frame, these arms being pivotallyconnected to the lugs 14 and l5 on the ends of the jaw 6. Fixed on therock-shaft 9 is a lever 2O provided with a weight 19 to counterbalancethe jaw 6 and parts attached thereto. To operate the jaw 6, I providetoggle levers consisting oi the members ll and l2 pivoted to each otherat their adjacent ends and at their outer ends pivcted to the frame by ashaft 13 and to the lugs l5 on the movable jaw. The middle joint of thislever is oscillated by means of a connecting rod 1G pivoted to themiddle joint at one end and connected to a crank 17 in a driving shaft18 journaled in the frame and rotated by any suitable means. Thesetoggle levers oscillate both ways from a right line position, wherebytwo complete movements of the jaw G are effected by one revolution ofthe driving shaft.

2l represents the sides and 22 the bottom of the hopper for feeding thematerial to the machine.

In operation the short arm 7 will move in the areof a smaller circlethan the long arm 8 so that the jaw 6 will at its upper end approach andrecede to and from the jaw 4 to a greater extent than at its lower endand thus will both crush and roll the material between the upper ends ofthe jaws. As the material passes downward7 the jaws approach moreclosely to each other and the lower end of the jaw 6 being mounted on anarm of longer radius, moves more-nearly parallel with the surface of thestationary jaw 4, and the movement is rendered wholly so by the yieldingpressure of the lever supporting the lower end of the jaw 4. Furthermoreshould any very hard substance such as a piece of iron get between thejaws, this support will yield and allow said substance to pass throughwithout breaking or stopping the machine. The material is thus subjectedto a different movement of the jaws as it is made finer, the generalresult being that this compound crushing and sliding movement Will firstbreak or crush the material to a granular condition and then grind thesame to a very fine powder all at one continuous operation. The machineis thus eminently adapted for use in the manufacture of cement and likeuses, where the material is to be reduced from a granular condition ofconsiderable size known as cinder to a very fine powder.

I-Iaving thus fully described my invention, what I claim and desire tosecure by Letters Patent is;

1.'In a machine for crushing and pulverizing, in combination with alongitudinally movable jaw adapted to move in an are of comparativelyshort radius at the upper end and moving in an arc of comparatively longradius at the lower end, means for moving said jaw, and a comparativelystationary jaw opposite the movable jaw and arranged in Contacttherewith at the lower end, and also spaced apart therefrom at the upperend.

2. In a machine for crushing and pulverizing, the combination of asubstantially stationary jaw, a movable jaw opposite the same, a pivotedarm of comparatively short radius supporting the upper end of themovable jaw, pivoted arms of comparatively long radius supporting thelower end of the same, and means for oscillating the arms and movablejaw about the pivots of the arms.

3. ln a machine for crushing and pulverizing, the combi-v nation of asubstantially stationary jaw, a pivotal support for the upper end of thesame, a yielding support for the lower end of the same, a movable jawslidably engaging thc lower end of the stationary jaw, pivoted arms ofcomparatively long radius supporting the lower end of the movable jaw,an arm of comparatively short radius supporting the upper end of thesame, and means for oscillating the arms and movable jaw." l

4. In a machine for crushing and pulverzing, a yieldingly supported jaw,a movable jaw opposite the same, a short pivotcd arm supporting one endof the movable jaw, a longer pivoted arm supporting the other end of thesame, toggle levers connected to the movable jaw, and means foroscillating the middle joint of said lever.

5. In a machine for crushing and pulverizing, an in clined jaw pvoted atthe upper end and yieldingly supported at the lower end, a movable jawopposite thereto, a short pivoted arm supporting the upper end of themovable jaw, a longer pivoted arm supporting the lower end of themovable jaw, toggle levers attached to the jaw and oscillatingoppositely from a right line position, a crank shaft, and a rodconnecting the crank shaft and the lever.

6. The combination of plates arranged in parallel, vertical planes andspaced apart, a pivot pin and a lever supported by the plates, a weighton the lever, a yielding jaw supported by the pin and lever, a movablejaw, a short arm pivoted to the plates'at one end and to one end of themovable jaw at the other end, a long arm pivoted to said plates at onecnd and to said jaw at the other end, toggle levers pivoted to theplates at the one end and to said jaw at the otherend, a crank shaft,and a rod connecting the crank shaft and middle joint of the lever.

T. The combination of an inclined and yieldable jaw, a movable jaw abovethe same, a short arm pivoted to the upper end of the movable jaw, arock shaft on which said arm is mounted, a counter balance weightattached to said shaft, a longer arm pivoted to the lower end of themovable jaw at one end and to a rock shaft at the other end, togglelevers connected to the movable jaw and oscillating oppositely from aright line position, a crank shaft, means for rotating the shaft, and arod connecting the crank shaft and the middle joint 0f the lever.

In testimony whereof l ailix my signature in presence of two witnesses.

WILLARD J. BELL.

Witnesses E. N. HANLON, L, F. ECKARD.

